2023 —
LYON
SprintMob
FREELANCE FULLSTACK ENGINEERMobile app development done right — leading React Native builds for startups and scale-ups, from first wireframe to store release.
REACT NATIVENESTJSNEXT.JS
FULLSTACK ENGINEER — MOBILE & AI
Armand Charbonnier
Mobile apps & AI agents, crafted with care.
Freelance fullstack engineer — 15 years in, 40+ clients accompanied. I turn ideas into mobile apps users love, and wire up AI agents that do real work.
15LEVEL
40+CLIENTS
3LANGUAGES
7COMPANIES
PROFILE
Based in Lyon, working remotely worldwide. React Native expert at SprintMob — mobile app development done right. Previously embedded at Finary and teams across France and New Zealand.
- Master's in Software Engineering — Université de Rouen (2014)
- DUT Computer Science — Le Havre (2010)
ACHIEVEMENTS
- 40+ client apps shipped
- Finary — fintech quest cleared
- International quest — New Zealand
- Trilingual: EN · FR · JA
ATTRIBUTES
Skill mastery, earned over 15 years in the field.
MOBILE
main classReact Native96
Expo & EAS92
Store delivery90
AI & AUTOMATION
specializationAI agents88
LLM integration86
n8n90
FRONTEND
React95
Next.js88
TypeScript90
BACKEND
Node · NestJS90
Firebase88
PostgreSQL86
SPOKEN
FrenchNATIVE
EnglishBILINGUAL
JapaneseWORKING
SpanishBASIC
QUEST LOG
15 years of engagements — from first lines of VBA to AI agents.
2022 – 23
LYON
Finary
FREELANCE FULLSTACK ENGINEERA year embedded with the team behind France's fast-growing wealth-management platform — investor-facing features across web and mobile.
REACTREACT NATIVE
2018 —
WORLD
Independent
FREELANCE REACT / REACT NATIVECross-platform apps end to end for 40+ clients: React, Node.js, Firebase, PostgreSQL.
REACT NATIVENODE.JSFIREBASEPOSTGRESQL
2018
NZ
Mahuki — Te Papa
LEAD SOFTWARE DEVELOPERLed development of EventBestie, a responsive event-management web app, at the national museum's innovation hub in Wellington.
REACTLEAD
2016 – 18
ROUEN
Attineos
SOFTWARE ENGINEERConsulting engineering across enterprise web projects.
.NETWEB
2012 – 16
ROUEN
FTEL
SOFTWARE ENGINEERWeb & cross-platform apps in C#, PHP and Xamarin — .NET MVC, SQL Server, specs and project management.
C#XAMARINPHP
2010
LE HAVRE
Dresser-Rand
THE ORIGINFirst quest: a multi-user database management tool in VBA — analysis, modeling, training the team.
VBASQL
PROJECTS
Completed quests — a selection.
FEATURED QUEST
Finary
Wealth management, done beautifully.
A year inside one of France's hottest fintechs, shipping investor-facing features across the React web app and the React Native mobile app.
REACT NATIVE
REACT
FINTECH
ONGOING · SPRINTMOB
40+ client apps
Mobile apps for startups and scale-ups — idea to App Store & Play Store, done right.
SPECIALIZATION
AI agent setups
Agentic workflows and automation pipelines that remove the boring 80% — LLM integrations wired into real business tools.
CLIENT QUEST · FINTECH
Klemo
AI-powered wealth advisor by Garance group: conversational onboarding, free financial check-up and personalized investment recommendations, on mobile.
klemo.com →CLIENT QUEST · RETAIL
Printemps Listes
Wedding & gift-list platform for the iconic Parisian department store — catalogue browsing, list management and gifting flows on a React storefront.
listes.printemps.com →SIDE QUEST · SOLO BUILD
SnippetShots
Code-to-image API: one POST request returns a polished PNG of a code snippet — 20 themes, deterministic caching, no headless browser to babysit.
snippetshots.saru-lab.com →SIDE QUEST · NZ
EventBestie
Responsive event-management web app for venues — led the build at Te Papa's Mahuki innovation hub for ShowMode Ltd.
SERVICES
Freelance engagements — three ways to party up.
Mobile App Development
React Native from idea to store. Design-minded, performance-obsessed — apps your users will love.
MVP SPRINTAPP RESCUETEAM BOOST
AI Agents & Automation
Agentic setups that actually ship: LLM integrations, internal copilots, workflow automation.
AGENTSLLMWORKFLOWS
Fullstack Web
Next.js front to NestJS back — one engineer, the whole stack, no hand-offs.
NEXT.JSNESTJSFIREBASE
Remote worldwide · EN / FR / JA · Open to new engagements
START A PROJECT
CONTACT
Tell me about your project — I reply within 48h.
LinkedInin/acharbonnier
GitHubgithub.com/armandchbr
Prefer a call? Mention it in your message with a time slot and timezone.